Power-transmission device



v I l June 7 1927' A. s. NEwMARK 631500 Powfsn TRANsMissIoN DEVICE Filed D60. 16. `1925 I lim?l lglllllllll l lllllllillllllllllllll lll/11 WITNESSES ATTORNEYS vlamented June 7, 1927. j y j Unirse srafrss AARoN s. NEWMARK, or

PATENT .f

' rownn-frnans'ivrission nnvrcn.v

Applicationjmea 'neceniber'iav 1925. serial 110-75336. v.

This invention relates to power ltransmission devices and refers more particularly to a device of this characterdesigned as anattachment to an automobile motor equipped withv afan belt from:which the power is transmitted to a rotary polishing head or y any other suitable implement.

The principal object ofthe present invention resides in the provision of a simple, in-

expensive and eflicient meansfortransmit- 120 mobile, andy necessitates no' alteration` or j changes of construct-ion ill-view, reference is-had toy-the following '25- in the parts to which itis applied. l A I .1

With the above recited and Vother objects specication and accompanying drawings in-V which there is exhibited. one example or, embodiment of the invention which isin-no way intended as a limitation upon the scope of the appendedfclaimsas rit is to be clearly understood that variations and modificationsy Y scale of .the polishing head or other imple- V- yperiphery Vof the `drive* pulley 15, will,4

which properly fall within the scope of said claims may be resorted lto when found eX- pedient.

In the drawings Figure 1 is a face view of the fan unit with the power transmission attachment in applied relation; Y Y .Y

Fig. 2 is a horizontal sectional view therethrough on an enlarged scale taken approximately on the line indicated at l2--2 in Fia 1; Y

Fig. 3 is a sectional view on an enlarged ment driven by means yof the power transmission device. Referring to the drawings by characters of reference, A designates a motor fan, B the fan-bearing bracket,l and C the fan belt which drives the fan. Y

The power transmission device'constituting the present invention, consists of av housing orcasing 10 in which a pair of meshing gears 11 and 12 are mounted on transverse shafts 13 and 14, the former extend-` ing through the casing 10 in oneV direction and having secured thereto a drive pulley 15 which is, designed to positioned en.

' gagement with one of the .leads of the vfan beltC for transmitting power from the fan belt through the pulley to the meshing. gears 11 andf12. [The shaft 141 of the gear 12 eX- l tends: througha threaded nipple '16.on the Y opposite side `of lthe casing andzis*A formed at its 'outer end with a coupling 1 8, onev end Y of'whic'h is connectedwith a flexibleshaft inldicated generally by the reference` character '19 leading .into a terminaly member `2Opr o;

Avided with a handle 21. The opposite end of.l the -ilanged vshaft is provided with al vcou- .pling 22 for receiving the terminal of the shank 23' of av polishing head `or other implement 24 to which the power is designed to ybe transmitted. In order tojprovide means Lfor supporting the power Ytransmission device infjuxtaposition and proper correlation with ltheffan -belt C, -a supporting bracket is provided, which consists ofaV stem 25` projecting ifrom lthe casing or, housing 10, jover which a tubular armv 2,6 lis telescopically.- arranged andl adjustable, the-stemeand arm being maintained in relativelyadjusted lrela- 'tion by a setscrew 27;@V The,ar1,nf26 isj pivot- :ally .Connected iatzfQS, with a; Stem. 29 Whh is receivedifbyf j the. tubular". Shank i130. Of a Vclamping element 31, said "shankyandstem being maintained in relatively adjusted relas tion byv set screws '32., The clamping element 31 is in the natureof a splitring hav- I ing outwardly projecting apertured .projecting ears 33 with whicha bolt34 is'asso-` v ciated for clamping the supporting bracket j to the motor fan bearing. bracketV B. By

constructing the supporting bracket tofpermit of substantial universal adjustments, it' l is obvious thaty the device can be arrangedA kto operate in conjunction` with practically 'any standard form ofmotor fan belt now in f use. Whenthe device is applied, it is ob-`l` vious that the fanbelt' engaging with the through the intermeshing gears 11 and 12,`

rotate the flexible shaft and any implement which iscoupled with the outer end thereof.

While the device is illustrated particularly as a` means for drivingV a polishing head which'will be employed for., polishing the body or otherfpart of the automobile, it is,

nevertheless, 'intended within. thev vscope of the invention, to attach theretojany form of implement desired. i What is clamed'is: l. A. power transmission attachment of t-he ,class described', includingl a (fan belt e`n.

gaging pulley, a flexible shaft driven theremeans for supporting thepulley in by, and

operative relation to the' fan belt, ysaid'nieans consisting of a member to which the pulleym is journaled, an adjustable clamping bracket comprising hmgedly connectedai'iiisl'feacli' having telescopically associatedsections, one of Which'sections is attached to saidinember and 'the other of which isv designed to `be clamped toa stationary elementy adjacent the fan' belt. I n p 2.A power transmission attachment of the classdescribed, including afan belt enis j ournaled, an

gag'ing pulley, aflexible `shaft driven'there` liavingf telescopically and 'rotatably associated sections,- one" of-"vvhich1 is' attached to saidmemberand the other 'of which is designed to beblampe'dtoa stationarylele'men i 'adjacent the 'fan' belt.V

3Q Air automobile accessory, "comprising a fan beltpovve'r transmission deviceincluding n l a 'casinghaving 'intermelsliing gears, shafts 'o'i'"sa'id' gears journaled inv thefc'a'sing' and vp'iojecting rointlieopposite sides'tliereof', a

`drive pulley secured to on'ej'ofl'said `shafts and 'arranged eXteriorly ofv the casin'g'ffor'en- 'gagem'ent with one ofI tlieleads' of a fan belt, a flexible shaft connected With the' remaining 'ge"rshaft and provided .at itsfreeend Withf "ali implement.

.4.. An :automobile accessory, comprising a fan belt power transmission device inclu-ding a casing `having intermeshing gears, shaits 474foifsa'i'd l(fears ourii'a'led in the casino and 2: #2 projecting from the opposite sides thei'eor, a

drive pulley secured to one of said shafts and arranged' exteriorly of the casing for` engage ment With one of the leads of the fan belt, a leXible/sh'aft connected With the remaining gear shaftr provided at its free end with a coupling adaptedV to receive the shanirof an implement, and meansor supporting the casing and maintaining the drive pulley in operative correlation With the fan belt,com prising an adjustable supporting bracket.

5. Airautoniobile accessory, comprising a fan 'belt power transmission device including a Casingv having intermesliing gears, shafts for said gears journaledy in the casing and projecting from the opposite sides thereof, a driv'epulley secured to; one of saidY shafts and' arranged eXteriorly of the casing for. en-

gagement with one of the leads ofthe fan belt, la flexible shaft connectedvviththe renia-ining'4 gearsliaft provided at itsV free end withy a couplingad'apted to receive thefshank of an implement, and'means for supporting the'casingand maintaining the drivepulley in operativeV correlationl With'ithe'lfan belt, comprising an adjustable supporting bracket 'consisting 'of pivot-ally 'connected' armsliaving telescopi'cally associatedY sections, one of whichV is connected to, the 'casing and the other' ot'v'v'liich is' provided with a vclamping device.

1 AARON s. NEWARK. 

